T-Mobile is introducing a retail Trade-In program aimed at giving customers a “cost-effective way to purchase a new phone and upgrade to America’s largest 4G network.” T-Mobile customers with existing handsets will be able to earn money that can be used toward the purchase of a new handset especially those running on T-Mobile’s 4G network. Customers can earn up to $300 with the trade in of their old devices, even devices that belong … [read full article]

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